Home / 5,197.60-7,796.40-2,605.60

Finding the Fourth Proportional to 5,197.60, 7,796.40 and 2,605.60

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Solution

The fourth proportional to 5,197.60, 7,796.40 and 2,605.60 is: 3,908.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.60 : 7,796.40 = 2,605.60 : x
  2. Step 2: Convert to fraction form
    5,197.60/7,796.40 = 2,605.60/x
  3. Step 3: Cross multiply
    5,197.60x = 7,796.40 × 2,605.60
  4. Step 4: Simplify right side
    5,197.60x = 20,314,299.84
  5. Step 5: Solve for x
    x = 20,314,299.84/5,197.60
  6. Step 6: Final answer
    x = 3,908.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.